Heat your Blackstone griddle to medium-high heat. Separate the griddle into 3 sections and add a small drizzle of olive oil, spreading it across the entire griddle. Add the potatoes to one side, season with Blackstone S.P.G. Seasoning, and cook for 5-8 minutes or until they begin to soften. Add the garlic and rosemary over the top and cover with a dome.
Add the broccoli to the center of your Blackstone with a bit of Blackstone S.P.G. Seasoning. Cook for 2-3 minutes.
To the last third of your Blackstone, add the zucchini and season with Blackstone Lemon Peppercorn Seasoning. Cook for 2-3 minutes.
To the broccoli, add sesame oil, soy sauce, butter, and green onions. Toss and cook for another 2-3 minutes, tossing often.
To the zucchini, add corn, butter, parmesan, lemon zest, lemon juice, and a bit more Lemon Peppercorn Seasoning. Toss and cook for another 2-3 minutes.
Serve each side dish separately or family-style. Garnish the broccoli with sesame seeds and the zucchini and corn with additional shredded parmesan.
